The reason that hot oil pump produces motor bearing rust is very complicated, it may be that the bearing is rust-proofed badly, it may also be caused by moisture and corrosion caused by paint mist. It is with the type of insulating paint, pre-filled bearing grease, motor paint handling and motor storage environment has a close relationship. Corrosion of the motor bearings by testing the sample to determine the corrosion of motor bearings is determined by the motor stator winding insulation paint volatile acid composition and the grease is absorbed by the grease, resulting in the deterioration of grease failure Caused, especially in the ball and the raceway contact location, the corrosion is more serious. Most motor plants used in insulating paint volatile acid components are mainly four: â‘ unresponsive low-molecular-weight paint raw material acid components (anhydrous isosorbide and terephthalic acid, anhydrous maleic acid, trans Butenedioic acid). â‘¡ acid curing acid generated when the composition (with phenolic denatured paint, from formaldehyde to formic acid). â‘¢ heat or oxidative decomposition of lower fatty acids (formic acid, acetic acid). â‘£ paint cured acid generated after the decomposition of water. Insulating paint is the main acid component of formic acid, the amount of formic acid is closely related to the occurrence of rust. Grease adsorption of volatile paint out of the acidic components, causing grease deterioration, and this acidic component and promote the hydrolysis of oil, resulting in the concentration of acidic components increased, causing bearing corrosion. Grease working principle is the use of grease layer will be separated from the ball and the inner and outer raceway, the viscosity of the use of oil viscosity characteristics, attached to the ball and raceway surface, separated from the ball and the inner raceway metal interface to reduce the metal surface Wear and protect the metal from the air and water corrosion, reduce vibration and noise, so that the bearings can be smooth rotation. However, the deterioration of the grease, the viscosity will change, the oil film break through, the grease separation function and adhesion characteristics will disappear, the consequences of this, first, make the insulating paint acidic components directly oxidized metal surface, causing bearing corrosion. Second, the ball is caused by direct contact with the inner and outer raceway, wear occurs when rotating, resulting in increased noise.
Tensioner Bearing
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Name
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Tensioner Automotive Belt Tensioner Kit auto bearing VKM14224
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Brand
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XRT
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Quality standard
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ISO9001:2000 standard
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Sample
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Avaliable
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Delivery date
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Normally ready goods and stock
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Shipping
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DHL, TNT, Fedex, UPS, Ems or by sea
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Payment terms
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A: 100% L/C at sight
B: 100% T/T
C: Western Union
D: Paypal
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Application
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Automotive, rolling mill, mining, metallurgical, skateboard etc.
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Package
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a. According to customer's requirements.
b. Original bearing and good quality packaging.
c. Laser mark on the bearing.
d. Bearing wrapped by vacuum packaging.
e. The outer is color polybag + box + carton,
industrial standard packaging.
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Tensioner Kit Auto Bearing,Car Bearing Tension Bearing,Car Tensioner Bearing,Auto Car Belt Tensioner Bearing
Shijiazhuang Longshu Mechanical & Electrical Equipment Trading Co., Ltd. , https://www.lsjgbearing.com